Archive of Our Own ^beta

Panicked footsteps rushed up the steps, orange and black combat boots skipping every other stair until they stopped in front of a closed door.

Katsuki was talking with Kirishima at their agency when he got a call about Izuku being hit with an unexpected quirk. That was all he needed to hear, immediately rushing over to Izuku's apartment.

He knocked twice, hearing someone shuffle inside. There was a shadow under the door, Izuku clearly looking to see who it was through the peep hole before opening it slightly.

“Ka-Kacchan?” Izuku sounded nervous, which made Katsuki internally panic.

He cleared his throat,

“Hey nerd, I got a call from Four Eyes that you got hit with a quirk while you two were on patrol. You okay?” He asked, anxious.

The freckled male looking around nervously made him raise an eyebrow. He was about to speak up again, until Izuku grabbed him by his shirt and pulled him in. Sometimes Katsuki forgot how strong Izuku was without using OFA, winded by being abruptly tugged inside.

Scarlet eyes watched Izuku lock his door before walking away to pace around his living room, noticing Izuku had on one of his t-shirts. It was a little bigger on Izuku, stopping at his mid freckled thighs, which made Katsuki realize Izuku also wasn't wearing pants either.

Taking his shoes off, the blonde walked into the living room and sat on the couch. He leaned back, ready to hear what happened to his best friend.

“Well, get on with it, what the fuck is going on?” Impatiently tapping his foot on the floor, he waited for Izuku to say something, anything.

Pretty emerald eyes finally looked over at him,

“Kacchan, do you promise not to laugh? It's really embarrassing and only Uraraka, Iida and Todoroki know so far. I want to keep it discreet, it's one of the weirdest things that has ever happened to me.” Katsuki scoffed.

“Even weirder than that time you had gills and were half fish for like four days?” Izuku nodded his head.

Awkwardly shifting in front of him, only a few feet away, Izuku nervously messed with the bottom hem of his shirt. Shyly, he glanced up at Katsuki before looking away. Then one hand gripped the edge of his shirt, slowly lifting it up to his chest to reveal his naked lower half.

Scarlet eyes grew large, because Izuku's dick was gone and he had a—

“You have a pussy?” Leaning forward on his knees, Katsuki blinked twice, making sure he wasn't seeing things correctly.

Izuku groaned, immediately putting his shirt back down.

“Yes, I-I…I guess a delinquent teen running around the streets skipping school thought hitting me with his sex change quirk would be a funny joke. Now he's been detained, not in serious trouble since he's only fifteen, but still. Unfortunately, this is the side effect and I'm stuck with…this.” He pointed down to his nether regions.

Katsuki hummed,

“So, like, how long do you have a pussy for?” Izuku covered his face with his hands, blushing.

“Oh my God, stop calling it that, Kacchan! And they said up three weeks. Hopefully no longer than that, I don't even know how to use this thing. This feels so strange, my p-penis is just gone.”

“Haven't you fucked enough of your little girlfriends to know how to, uh, operate it?” Katsuki awkwardly scratched the back of his head.

Izuku threw his hands in the air, frustrated.

“Kacchan, I have never personally had a vagina. It's literally a new hole, I have no idea how it works on my own body. And now that I think about it, I should call Mina, or Uraraka. Maybe both, because I don't have a clue how to function normally with one. Oh, and the doctor said I have a fully functional uterus, it's all so beyond weird.” A blonde eyebrow slowly rose.

“Wait, so hypothetically, you could get pregnant these next three weeks if you fucked someone?” Izuku opened his mouth, closed it, then chewed his bottom lip, bringing a hand to his chin.

“You know, I didn't think about sex or anything like that. But I guess so, even though it would be physically impossible to carry a baby because the quirk will wear off. And I can't think of anyone I would feel safe enough to have intercourse or experiment with. Nobody except yo—” Izuku froze.

“A-Actually, nevermind, let's talk about something else!” His voice went up by a few octaves, but Katsuki was quick to catch his slip up.

Was Izuku going to say he wanted to experiment with him?

Sitting up straighter, Katsuki waved his hand at Izuku in a come hither motion.

“Come ‘ere nerd, let me see it up close.” Izuku's eyes blinked rapidly, gripping the edges of his t-shirt.

“Wha–”

“Just let me see it one more time. I promise I won't do anything you don't want me to or laugh, I just want to look at it again. Please?” He begged a little, which seemed to be the trick because Izuku instantly caved.

He walked until he was right in front of the blonde, who spread his legs open for Izuku to stand between them. He stared up into emerald eyes, making sure Izuku was comfortable, anticipation secretly crawling through his skin.

Taking a deep breath Izuku lifted his shirt up again, looking anywhere but at Katsuki who was now face to face with Izuku's new equipment. If having nosebleeds on the spot like in anime were physically possible, blood would be swimming on the floor.

Carefully, his hands place themselves on Izuku's hips, pulling the shorter male closer to him. He knew Izuku liked to get waxed monthly due to his hero suit and sweating, so he wasn't surprised by how smooth it looked. It was puffy and the color red, almost like it was blushing. And dare Katsuki say it was cute, very fitting on Izuku while it sat in between muscular, thick thighs.

Unconsciously, he lifted one of Izuku’s legs on top of his shoulder, the freckled male gasping from the sudden movement. It got Katsuki a closer look inside, his hot breath ghosting over Izuku’s pussy. The lips were cubby, and his walls were a beautiful shade of brown mixed with a hint of pink, his clit so close to Katsuki's mouth.

He was almost tempted to lick it, watching Izuku's walls twitch when he breathed on it again. Feeling goosebumps suddenly rise on Izuku's skin, he resisted the urge to eat him out. Which was odd considering Katsuki didn't like women, and even stranger when drool heavily threatened to leak from his mouth, gulping back primal urges.

“Okay, t-that's enough!” Izuku gracefully swung his leg away from Katsuki's grasp, taking a few shaky steps back.

In a daze, Katsuki blinked and took a shuddering breath through his nose.

Without thinking, he said,

“If you want someone to fuck you while you have it, I'll do it.” He volunteered before he could stop himself.

Damn, he was down bad for Izuku.

The shorter male's entire face changed to the color of a tomato, Izuku's jaw dropping in shock. His mouth was like a fish, opening, closing, gawking at Katsuki. And he didn't blame Izuku, he had no idea himself why he even offered.

Izuku fanned a scarred hand towards his red face, trying to cool himself down.

“While I…um, appreciate the offer Kacchan, I would never ask you something that I know would make you uncomfortable.” Katsuki cocked his head back.

“If I just offered sex, why the fuck would that make me uncomfortable?”

“Because you're gay and have never done it with the opposite sex?” Katsuki frowned, slightly offended.

“I've kissed a girl and have had sex with a woman before, Izuku. What the fuck are you talking about.” The green-haired male gave him a flat look before rolling his emerald eyes

“Yeah, one interaction was making out with Mina for twenty seconds at a party in L.A, and the other was sex with some random girl in Thailand. And mind you, you were drunk and don't even remember that happening. Plus the last time a girl flashed her boobs at you, you hissed at her and flashed your chest back because you're competitive.”

Katsuki groaned.

“Alright, shit, you don't gotta remind me how fucking gay I am. You're right, I don't like women. But because it's you I don't really give a damn, I'll fuck you right here and now. Weirdly enough, a pussy looks hot on you.” With a wolfish grin, he watched Izuku stare in disbelief at him.

“Um, okay, on that note I'm gonna ignore this whole conversation ever happened and put some pants on. So, I'm starting dinner, you gonna stay? I'm making fish and rice.” Katsuki shrugged.

“Sure nerd, just don't fuck up and burn the food this time.” Izuku pouted at him, trotting upstairs.

“It was one time I burned dinner and I was distracted watching a new All Might documentary.” He yelled once he was on the second floor.

“Nerd!” Katsuki shouted back, grinning at Izuku's bell-like laugh from above.

Yes, last time Katsuki checked, he was definitely gay. He liked balls, dick, ass, and mostly, he adored the heck out of Izuku. However, when he looked down, he noticed a small tint in his pants, raising an eyebrow.

Did Izuku with a vagina make him grow hard?

How inconvenient, Katsuki was by no means straight, but for some reason he wanted to fuck the shit out of Izuku's pussy. Which was weird because that certain anatomy made him gag, but maybe, just maybe, it was because it was attached to Izuku he didn't give a damn.

This was definitely going to be an interesting next few weeks.

They didn't speak about sex again until two days later.

Katsuki was sitting on a bench in the locker room of his agency, where he, Izuku, and some of their friends worked together. Eventually Izuku accepted his offer to his agency, but they ran it together as partners until Izuku's was fully built.

A few guys greeted him, Kirishima and Denki waving goodbye until he was supposedly the only person left. But he wasn't leaving without Izuku, so he patiently waited, scrolling on his phone to pass the time by. Izuku just got done patrolling, so he should have been ready to leave with Katsuki by now.

Light footsteps approached, Katsuki just barely catching green eyes peaking from around the corner.

“The fuck are you doing, Izuku? It's just me.” He put his phone down, sitting back on his hands with curiosity laced in his voice.

Sighing, Izuku came from around the corner, only wearing a towel wrapped around his sculpted waist. He nervously smiled at Katsuki, looking around hesitantly.

“Are you sure it's just us? I was waiting because…” He stopped talking, discreetly pointing down to his crotch.

Right.

Izuku had a vagina.

Rolling his eyes, Katsuki looked him up and down. The urge to pull Izuku's towel off and give him backshots against the lockers flashed into his head. It made him blinked, not expecting the vivid image to pop into his mind like that.

“Well, it's just us. I've been waiting for you for the last ten minutes.”

“Oh.” Was Izuku's response, watching the freckled male play with the hem of his towel.

The shorter walked over to his locker to pull out his backpack, his outside clothes and other things in it. Yet Katsuki couldn't help but admire the small water droplets dripping down his freckled muscular back, licking his lips.

Izuku was so fucking gorgeous, it was insane that he called himself plain looking.

Stunned, he wasn't expecting Izuku to suddenly drop his towel and start changing in front of him. Scarlet eyes blinked, watching Izuku put another old t-shirt of Katsuki's on that was a little bigger on him. The blonde had bigger arms and a longer torso, but Izuku had larger thighs and a thicker ass, bottom heavy.

Speaking of bottom, he wasn't ready for Izuku to bend over, exposing his pussy to Katsuki who silently choked on his spit. Putting a hand on his mouth, Katsuki's eye hungrily followed how it spread open like a flower blooming. It was almost like Izuku was teasing him, slowly sliding a pair of thongs onto his legs and up his thighs.

Katsuki felt like he was going crazy.

Something needed to happen, he had to know what it felt like being inside of it. Not just because he was horny, but his curiosity peaked. And not with his dick, just his fingers would do. He wanted to please Izuku and see what kind of faces and noises he made.

“Izuku, have you played with it yet?” Green curls bounced when Izuku turned his head slightly around to stare at him.

“Pl-Played with it? I barely know how to still use it. I haven't…experimented if that's what you're asking.”

Without another word, Katsuki gently took his arm and led them to a private stall, closing the curtain behind them. He pushed Izuku against the wall, cornering him with his larger body. Izuku was only two inches shorter than him, but his big arms caging Izuku in made him seem much smaller in the moment.

Emerald eyes peered up at him, excitement mixed with uncertainty swirling within them. And Katsuki stared back with full determination in his gaze, their faces merely inches apart.

“Kacchan?” Up close, Izuku smelled like lilacs, a nice floral aroma that was pleasant to Katsuki's nose. Most likely from Izuku's shampoo and body wash.

“Do you trust me?” He asked, to which Izuku responded with a small nod.

Looking down at plump lips with a pink tint, Katsuki decided against kissing him and planted his lips on his neck instead. Izuku gasped, shifting his neck so Katsuki had more area to cover, slowly kissing the sensitive skin.

Feeling feral, he took his time, his hot lips against Izuku’s cold skin, feeling goosebumps rise up. Whimpering, Izuku held him closer, rubbing his face against Katsuki's while he tried his best to not be too loud. But the blonde loved the suppressed sounds of pleasure, leeching onto Izuku’s neck and down to his adam's apple, even kissing his chin and cheeks.

Izuku's skin was smooth, soft, untouched, just ripe for Katsuki to mark it up. He kissed along his throat, poking his tongue out to lick where he kissed. Then teeth, gently biting and sucking to leave hickies. And Izuku loved every bit of it, shaking against Katsuki.

Just a little foreplay before getting to what he really wanted to do. A pool needed to be wet before you could swim in it.

One hand curled around Izuku's hip to hold him close, while the other slowly traveled down to the front of Izuku's thongs. He snapped the band by his hip, making Izuku shudder, then slid the fabric to the side. Two fingers slid into Izuku's folds, the shorter male opening his legs wider for Katsuki.

With just his fingers, he felt the heat emitting from Izuku’s forbidden cave. Lowering them more, they felt the wetness dripping from his entrance, gulping from the anticipation running through his body.

He stopped kissing Izuku's throat for a brief moment, looking into his eyes to silently ask permission. He was sure they both wanted this, but still wanted to ask just in case because consent was sexy.

“Y-Yes, please.” Izuku whispered against his lips.

Biting his lower lip, he watched the way Izuku's mouth dropped when he slid his fingers into his tight hole. Katsuki damn near moaned out loud himself, his fingers encased in warm, suffocating flesh that put his brain into overdrive. And it was wet, perfectly lubricated for Katsuki to start working his fingers in.

He curled them, just testing the waters, but it got a reaction from Izuku. So he did it again, and again, then a fourth time. Quickly deciding, he pressed his fingers deeper, rougher, flexing them while going faster. The low whimpers next to his ear turned him on, as if Izuku was directly moaning in his ear deliberately.

Those scarred hands wrapped around his shoulders, digging his nails into Katsuki's back.

“Quiet, or someone might walk in on us.” Katsuki teased, curling his fingers at just the right angle that had Izuku gasping for air.

“Kacchan!” Izuku hissed, his legs shaking while fighting to squeeze against Katsuki's hand.

Finally finding a good pace, he added a third finger, flexing them in and out of Izuku’s tight hole. His freckled thighs quivered, Izuku digging his nails more into Katsuki’s shoulders. And Katsuki felt himself growing hot, moving his hand faster. The only sounds being made were Izuku's quiet moans and the wetness of fingering the shorter male, like music to the blonde's ears.

Footsteps approached, both so lost in what was happening that the voices outside made them stop. Katsuki had his body directly in front of Izuku, slowing his fingers down but not stopping. Izuku chewed his bottom lip, staring up at him with teary eyes, his legs trembling.

“Wait, didn't you say Kat was in here like ten minutes ago?” That was Denki's voice.

“Yeah, he was. Oh shit, is that Izuku's bag? Maybe they got pulled into a meeting, it looks like Izuku was in a hurry.” There was no mistaking the second voice, Kirishima.

Katsuki rolled his eyes, of course those two were looking for him.

But they didn't matter, pushing his forehead against Izuku’s to look into his emerald eyes. They ignored the duo outside having a conversation, Katsuki asking Izuku if they could continue with his eyes. Izuku quickly nodded his head, pulling him tighter against his body as if he didn't want to let go.

Quietly, Katsuki slithered his other hand down to cuff the back of one of Izuku’s thigh's, lifting it higher to rest on his hip. It opened the shorter male up more, the wetness from Izuku's hole and his precum covering half of Katsuki's hand. With the new angle, he started finger fucking him again, his thumb lightly grazing Izuku's clit.

“O-Oh fuck!” Izuku whispered, Katsuki must have found the right angle.

He lazily circled his thumb around Izuku's nub, slow but with enough pressure that drove the freckled hero crazy. Tears spilled from Izuku’s eyes, and Katsuki worked him with his fingers, hungrily watching Izuku crumble beneath him. Glorious, pleasurable torture, fighting the urge to kiss Izuku while the clock ticked.

Eventually, Katsuki felt Izuku's inner walls spasming on his fingers, Izuku’s breath coming out in short pants. He watched Izuku's jaw lock, viridian eyes rolling back before he started cumming onto his hand. He placed his head in the crook of Katsuki's neck, his hands on Katsuki's shoulders pulling the blonde male flush against him.

Katsuki was fascinated with the way Izuku's body vibrated against his, holding him up so he didn't fall. Izuku's orgasm was harsh, his body shivering against Katsuki's who willed himself not to cum with Izuku, his dick straining in his pants.

It took Izuku a minute to catch his breath, both hearing Kirishima and Denki walk out the locker room, just the two of them alone together again.

Carefully taking his fingers out of Izuku, he made direct eye contact before putting them in his mouth, sucking the flavor from it. Emerald eyes grew wide, Katsuki loving the sweet yet salty taste of the freckled male. It was nice, delicious, realizing that if Izuku gave him the chance, he could eat him out for hours.

“Ka-Kacchan, that's gross…does it taste good?” The blonde grinned wolfishly.

He startled Izuku by putting two of his fingers back into his pussy. Then he took them out, putting them to Izuku's lips.

“Open and swallow.” He instructed, and Izuku immediately obeyed.

He gulped, seeing Izuku's tongue curl around one digit at a time and sucking it slowly. But he never broke eye contact, moaning on Katsuki's fingers. What the blonde wouldn't give to feel that mouth around his hard cock right now.

But he only wanted to please Izuku, not the other way around.

“Alrighty you slutty little nerd, I need to piss. Get yourself together so we can go get dinner.” Izuku whined when Katsuki pulled away, peeking out and rushing to a nearby toilet stall.

Quickly, he whipped his cock out and relieved himself, cumming in under thirty seconds. Izuku was undeniably beautiful, but the sounds of his moans would be replaying in his head until the dawn of time.

He already craved to hear them again, looking down at his cum covered hand with a mix of excitement and embarrassment.

Thinking, he already started to wonder what else he could do to rile Izuku up again.

It happened again the next night.

After the war, Katsuki admitted he sometimes had a hard time sleeping, and being right by Izuku at night helped. It wasn't as bad as it used to be, but sleep overs between them even as adults happened often. At least two or three times a week, maybe even a whole weekend at each other's houses if they were feeling fancy.

Tonight, Katsuki decided he would crash at Izuku's after work. Surprisingly, he wrapped up a short mission with Kirishima quicker than they thought, so he decided to take a shower and head to Izuku's place early.

It was only two hours, so he stopped by his place to make them a quick dinner and freshen up.

Walking to the door after buzzing in Izuku's apartment and parking his car, he whipped out the spare key and unlocked it.

Taking his shoes off, he set the food down on the dining room table. It was only nine pm, so Izuku should still be up.

“Izuku.” Katsuki called out his name, only to hear a pained grunt in response.

Slightly panicked, he sped walked upstairs, noticing the door to Izuku's room was slightly opened. So when he heard the distressed whimper again, he poked his head in, shocked and intrigued by what he saw.

Leaning his body against the door frame and crossing his arms, he watched Izuku pleasing himself on his bed. There only light in the room was an orange lava lamp, the atmosphere dim and sensual.

There were several wet spots on bed cover, and Izuku was covered in a thin layer of sweat, fully naked. His hand gripped the sheets while the other held the vibrating toy between his legs, his head thrown back in pleasure. Fuck it was hot, Katsuki feeling his dick start to rise.

Scarlet eyes drifted down to the wet noise coming from in between Izuku’s legs, sex juices dripping onto the bed sheets. This was definitely in Katsuki's top three hottest things he's ever seen with his own eyes. Actually, it may be number one, considering all three were moments involving Izuku.

The freckled hero looked tired, his chest rising up and down with quick breaths. And his toned body was beautiful, his back slightly arched off the bed. Izuku's body was trembling, his feet planted firmly on the bed, those shaky thighs fighting to close. He looked like he was about to cum again, Katsuki waiting anxiously to watch it happen.

He could watch this all night.

“You having a good time, Izuku?” He called out smirking, startling the other male.

Quickly sitting up on his knees, Izuku wearily blinked at him, clearly in a post orgasm haze. Katsuki felt hungry, licking his lips while trying to contain himself from pouncing onto Izuku.

“O-Oh, umm…hi Kacchan?” Izuku placed hands on the bed behind him, spreading his legs while his body physically relaxed, realizing it was only Katsuki.

Scarlet eyes were glued onto Izuku’s dripping sex, inhaling deeply, then glanced back up into teary emerald eyes. He wanted to fuck him so bad.

“Me and Kirishima's mission got done early, so I made dinner then came here. But it looks like you're a bit preoccupied.” A red hue tinted Izuku's cheeks, looking away from Katsuki and at the orange toy on the bed.

“Yeah, sorry, I was going to clean up and be in clothes by the time you got here. I just…um…well, I got dragged to a sex shop with Mina earlier since it was her off day too. She was showing me all these things, dildo's, butt plugs, anal beads, everything. So I bought a vibrator because she said I would like it. And I guess I was curious to see how many times I could have an orgasm before you got…here.” He confessed, closing his legs in embarrassment.

A blonde eyebrow rose,

“There's nothing wrong with wanting to feel good, nerd. I'm sorry that I didn't text you and just showed up out the blue. But I can't lie, I'm enjoying the pretty ass view in front of me right now.” Izuku's whole face grew red, Katsuki snickering at him.

They stared at each other, a sudden tension in the air. With unspoken words, Katsuki walked over towards the edge of the bed. Izuku unconsciously opened his legs, sitting up a bit more with a dazed look in his watery eyes.

“So,” Katsuki started,

“How many times have you cum tonight?” He placed his hands on Izuku's knees, fighting hard to not look down and keep eye contact.

“Seven, but…I think I can do it one more time. I-If you'll help me?” Katsuki made a face, confused but intrigued.

“Anything you want, just tell me.” Gulping, Izuku looked over at the vibrator, then back up at Katsuki.

“If you're comfortable with it, will you, um, hold my legs open for me? I don't think I can keep them open by myself anymore.” Katsuki silently nodded his head.

His grip on Izuku's knees tightened, then slowly, his hands slid down and grabbed Izuku's thighs. Surprising the shorter male, he easily scooted Izuku's body to the edge of the bed, keeping his legs open. Looking down, he watched pre cum drip from Izuku’s entrance, trailing down his ass cheeks and onto the ruined sheets.

Izuku held himself up with one scarred hand, while the other moved to place the toy directly on his clit. Refusing to break eye contact, Katsuki watched Izuku's jaw drop when he turned the toy on. A small whimper left Izuku's throat, immediately wanting to close his legs, but Katsuki's raw strength kept them easily opened.

Squirming beneath him, Izuku moved the toy around, rubbing it in his folds. But when he placed it on his clit, those green eyes rolled to the back of his head. His feet curled onto the sheets, titling his head back as pleasure burned through his whole body. Katsuki couldn't help but take in the way Izuku lost his breath, moans and filthy wet noises bouncing off the walls of the room.

Katsuki's dick instantly grew hard in his pants, his rising boner right next to Izuku's pussy. Unconsciously, he rolled his clothed cock into it, Izuku scooting closer to roll against it. Fuck, Katsuki had to shut his eyes, controlling himself and taking a deep breath so he could stay still for Izuku's sake.

“W-wait...” He barely heard what Izuku said.

Opening his eyes, he saw Izuku toss the toy on the bed. His scarred hand went down to his pussy, fingers ghosting over his cunt until they slid up to his clit. Katsuki didn't look away when Izuku's fingers circled over it, going back and forth with his digits on the wet, abused bud.

Izuku’s legs shook uncontrollably, his breaths coming out in rapid pants. Biting his lip in concentration, Izuku kept a determined look on his face while he rubbed in it over and over again, moving his hips to rub his drenched pussy against Katsuki's hard on again.

“Izuku.” Katsuki groaned, slowly rolling his hips with Izuku, trying to not cum himself and match Izuku speed at the same time. His grip on Izuku's thighs would most likely leave bruises, but he was trying everything to not nut in the spot.

“Im gonna c-cum, o-oh fuck!” Izuku laid flat on the bed, still furiously rubbing his clit while his back arched prettily off the bed. His lips were red and puffy from biting them so hard, tears streaming down his face while his hips thrusted so he could continue to rub himself on Katsuki's cock.

Not expecting it, Izuku made a high-pitched crying sound and shook violently, liquid squirting out of him and onto Katsuki. Scarlet eyes slowly blinked, staring down at Izuku who squirted like a water fountain, still rubbing his clit while he orgasmed harshly.

Izuku wrapping his legs around Katsuki's waist must have done it, and soon his own vision went white. He didn't register he was cumming in his pants until it was too late, losing his balance and quickly placing his hands on the bed.

He panted hard, placing his head in Izuku’s neck while catching his breath, but his legs felt like jello. So he crawled on the bed, moving them so he could comfortably lay on top of Izuku. His hands slid down the bed, curling themselves underneath Izuku's back to bring their bodies flush together. Izuku tiredly wrapped his hands around Katsuki's shoulders, nuzzling the sides of their faces.

His crotch was soaked from Izuku squirting on the outside, and cumming on the inside of his pants. But he didn't care, staying quiet so he could hear Izuku's sniffles and whimpers from cumming so hard in his ear. The warmth of Izuku's pussy was still against his cock, freckled legs wrapping themselves tighter around him. But he was content with just cuddling Izuku, hoping next time they could hold each other while cumming together.

The clock on the wall ticked as time passed, Katsuki eventually moving his head from Izuku’s neck.

He didn't realize their faces were so close, their noses rubbing when they stared at each other. Their mouths were basically touching, both shyly moving their lips so they could meet for a long, lazy, slow kiss. It felt magnetic, not expecting the warmth and softness from such a tender act of intimacy.

Izuku moved a hand up to Katsuki’s neck, pulling his face in closer. He melted into the green haired hero's touch, rolling his eyes back when Izuku snuck his tongue out to curl around his. He's always wanted to kiss the freckled male, obviously, but this was amazingly good, their lips smacking as the kiss grew more intense.

Carefully, he switched positions so Izuku could be on top while he laid on the bed, not caring about the wet spots.

The blonde let out a low groan, his hands reaching down to spread Izuku's ass cheeks and massage them. He gripped the plump flesh, opening Izuku's dripping cunt up and placing it right on top of his growing hard on. Izuku shuddered, slowly moving his hips on it and spreading his legs open so Katsuki could roll his hips up into him.

They did this for the next few minutes, sensually humping each other while sloppily making out. And Katsuki loved it, smacking Izuku's ass and using his strength to move Izuku onto top of him.

“Ka-Kacchan, I can't…” Izuku broke to kiss, twitching when Katsuki harshly rolled his dick onto his sensitive clit.

“Yes you can, baby, one more time for me.” Katsuki stared up at him, too far gone to care about himself.

He needed to see Izuku cum one more time.

Izuku shakily reached a hand out, Katsuki catching it so their fingers could interlock. Izuku's other hand placed itself on Katsuki’s chest, circling his shaky hips on the blonde's crotch. Katsuki's free hand grabbed Izuku's thigh, keeping the shorter male steady on top of him.

Crying fresh tears, Izuku bit his bottom lip and closed his eyes, whining sounds coming from him as he started to aggressively roll his hips. Drool started eaking from the side of his mouth while rubbing his sore clit back and forth against Katsuki's pants, lost in pleasure. The taller male wasn't any better, rotating his hips upwards to catch the friction of their bodies rubbing together.

Despite everything, Katsuki has always fantasized fucking Izuku. He was beyond pretty, exactly his type, had an insane body, matched his energy, his fighting style and attitude. Izuku checked all his boxes, quickly understanding that maybe his feelings for Izuku ran deeper than just sex.

And right now, he was mesmerized by Izuku, loving the way his toned, muscular body moved on top of him. So strong, gorgeous, everything Katsuki ever wanted. Then his breath caught in his throat when emerald eyes opened to stare down at him, Izuku's jaw falling.

With a shaky breath, Izuku's body froze, followed by the feeling of fresh warm wetness soaking onto Katsuki's crotch. Silently screaming, Izuku's eyes crossed while he came, letting out a broken sob when his body began vibrating. If it wasn't for Katsuki, he probably would have collapsed, but the blonde kept him upright, making sure he didn't fall over.

“Good job, Izuku.” He caught a trembling Izuku in his arms, holding him tightly.

Gently rubbing his back, he could tell Izuku was overstimulated, shifting him slightly away from his dick. Yes, he was extremely rock hard, but Izuku mattered more than anything. So he kissed the side of his face and neck, whispering small praises in Izuku's ear.

“You did such a good job, my pretty baby.” He kissed his cheek, suddenly feeling soft and protective over Izuku.

Izuku smiled through his tears,

“Thank you for helping me tonight, Kacchan. Sorry for the mess, dinner is probably cold by now.” Katsuki shrugged, running his fingers along Izuku's spine.

“We can reheat it later, I'm just glad I could make you feel good.” Izuku smiled, then looked down at his cock and made a face before looking back at him.

“But what about you?” Izuku asked mid-yawn, covering his mouth.

Silently getting up, Katsuki started to strip off his clothes, tossing them into Izuku's dirty hamper. He glanced back at the freckled hero, who sleepily admired his body.

Reaching his hand out, Izuku took it and let Katsuki lead them to the bathroom, starting the shower up.

They've showered together before, so Katsuki took his time cleaning Izuku, even washing his hair. And Izuku complied, letting Katsuki clean him without a fuss. Eventually Izuku actually fell asleep in the shower, slumping against Katsuki to his surprise.

After that, Katsuki put Izuku's sheets and their clothes in the washer, drying and putting pajamas on them both. Then changed the sheets while the other ones washed, setting Izuku down and letting him cuddle up against him.

He held Izuku in his arms, kissing his forehead and keeping him close. There was something definitely changing with them, because slowly but surely, they couldn't go back to normal.

At least Katsuki couldn't, staying up all night overthinking.

Eventually, Katsuki's conclusion about his feelings got confirmed by the end of the week.

Both he and Izuku were busy with work and mixed schedules the rest of the week since their sleepover, only talking through text. But even through text, they both seemed needier to check in and talk to each other. Then four days passed, and now it was Saturday evening.

Tonight was group night between their friends, their squads always trying to get together for group events or joint date nights two to three times a month. But this weekend, everyone decided to stay in since it was raining and too muggy to go outside, and thus have a group movie night.

Kirishima happened to be hosting it this time at his and Mina's house, and the last few hours have been fun.

They watched romance, comedy, horror films, a mix of everything. And all their friends were having a good time, conversation positively carrying on and someone was always laughing.

Throughout the evening, Izuku finally came over and immediately sat on the couch Katsuki was sitting on. Izuku grabbed a slice of pizza and a drink, lighting up the room with his presence like he usually did, and Katsuki smiled through it all.

At some point during the night, he finally looked around at his surroundings, taking it all in.

Mina was of course cuddling with Kirishima, they have been married for the last four years so it made sense.

Next to them sat Todoroki and Sero. He watched how the tape hero played with Todoroki's short hair while staring at him fondly, they've been together for six years.

Across were Momo and Jirou, Momo happily feeding her girlfriend a piece of popcorn.

Then there was Denki who was sitting in Shinsou's lap, Shinsou saying something in his ear that made Denki blush.

And right next to Katsuki and Izuku were Iida and Uraraka, who was five months pregnant with twins.

That's when it dawned on Katsuki, everyone in here was a couple.

He knew Kirishima didn't purposely plan it out like that, and no one was making out publicly or about to have a group orgy. But it did sting, his loneliness suddenly creeping in.

His arm was slung around Izuku’s shoulders, keeping him close. However, the bitter truth was that at the end of the day, he and Izuku weren't actually together, and it was putting a sour taste in his mouth.

In another world, he wished he could be like Kirishima. Married, happily in love, and no one else knew, but Mina was two weeks pregnant. Katsuki was rich, famous, successful, but he was lacking in the romance department. Which was something he didn't care about before.

But now?

Maybe a family of his own, whether that be animals or actual children running around, didn't sound so bad. Getting a house and being married to Izuku had a nice ring to it, almost thirty and ready for the next chapter of his life.

As to why he was having this sudden mid life crisis on group hang out night was beyond him.

Getting up from the couch, he made eye contact with Kirishima who silently followed him, both headed towards the back of the house near the garage.

Kirishima shut the door and flickered the light on, crossing his arms to stare at him.

“Hey man, you okay? I saw you frowning earlier, but it didn't seem like the usual scowl. What's on your mind?” Of course Kirishima would notice his mood change, he was his second best friend for a reason.

Scrubbing a tired hand over his face, Katsuki let out a deep sigh, his thoughts heavy.

“I've been messing around with Izuku, and I think it's getting to my head.” Kirishima raised an eyebrow.

“What, cause of the quirk mix up thing? Also you're not slick, I knew I heard you and Izuku in the locker rooms the other day. Denki said I was crazy!” The redhead teased and Katsuki rolled his eyes, shaking his head.

“We've only fooled around twice, but yeah, I fucked him on my fingers in the locker room on Monday. It's just really hard to keep my hands off him when he's all I ever wanted.”

“Holy shit, it's about time. Have you guys gone all the way yet?” The blonde shook his head.

“No, I think Izuku wants to, but I've only been touching him and relieving myself after. I like making him cum, the noises he makes, his pretty faces, it's so fucking hard to not touch him recently. I feel pent up and frustrated, because I also need to protect him. I have to know he's okay, cook him food, cuddle him, just be around him. Shit, Kirishima, I even want to take him on dates and do stupid couple shit. And it feels weird because I don't understand what the fuck is happening to me.” Katsuki groaned loudly, putting his head in his hands.

Kirishima hummed,

“So, are you having an epiphany that you might be straight or something? Because last time I checked, you've wanted to get into Izuku's pants since U.A.” Katsuki sighed.

“No, even before that, Izuku was my gay awakening in middle school. I've always wanted him, but now I'm realizing it's more than just sex. It's like I need him physically, like some spiritual soulmate type shit. I think I even want to marry him, I’m….I don't know, I feel like I might be–”

“In love?” Kirishima finished for him.

Katsuki dumbly nodded his head, staring down at the ground in silence.

Walking over, Kirishima clasped a hand over his shoulder and offered him a sincere smile.

“Listen man, I'm happy for you, really. But the fact that for the last fourteen years of knowing you, you're just now coming to this realization? You really are emotionally constipated.” His friend laughed, but Katsuki could only chuckle with him.

“Shut the fuck up.” He gently swatted Kirishima's hand away.

“No, seriously dude, I've known you both since I was fifteen, and no we're almost thirty, so that says a lot. I'm glad you finally realized your feelings, but what are you gonna do now?” Katsuki cocked his head back to stare at the redhead.

“The fuck do you mean?”

“Exactly what I said, are you gonna tell Izuku? What's the move?” Katsuki choked on his spit, the thought terrifying him.

“I-I…I don't know, what if he doesn't feel the same. I'd rather have him like I do now then have feelings fuck everything up.” Kirishima's lips tighten into a thin smile.

“Kat, you and Izuku are idiots. You think he doesn't like you back? News flash, but you're the only one he's messing around with, right?”

“As far as I know.”

“Okay, well I'm pretty sure you both like each other more than you think. Maybe the next time you have sex, try to tell him before so he doesn't feel like you're using him. Make him feel loved and reassured. You know he's been having a hard time since Shindo only used him for sex for two years.” Bitterness seeped into Katsuki, wanting to still strangle Shindo Yo for that to this day.

Loud boisterous laughter was heard, bringing Katsuki back to reality as to where he was in the first place.

“Come on, we've been gone for a minute. We can talk about romance bullshit later. I think being around you and Mina being lovey dovey is getting to me.” Kirishima rolled his eyes and laughed.

They talked for a couple more minutes, just discussing things about work until both men decided to finally go back into the house.

But on the way to the living room Izuku opened the guest bathroom door, coming face to face with them.

“O-Oh, hi Kirishima, Denki is looking for you! Something about the popcorn machine smelling like smoke in the kitchen? Mina is trying to fix it but it may be broken.” Izuku smiled, closing the guest bathroom door and entering the dark hallway.

“Shit, I'm on the way, thanks man.” Kirishima scurried down the hall, leaving the two of them alone.

Katsuki looked down at Izuku,

“Hey.”

“Hi Kacchan! Is everything okay? You and Kirishima were gonna for a little bit.” Katsuki breathed through his nose, shifting his gaze to stare at Izuku's lips.

He wanted to kiss him badly.

“I'm fine, I just needed to chat with him about work shit. Everything's peachy, don't worry your pretty little head, nerd.” He teased, making Izuku smile.

“Oh, I see, glad everything is okay.” Was Izuku's response, also glancing at his lips too.

He didn't know who moved first, but suddenly they were on each other like magnets.

Izuku pushed him against the wall, Katsuki grunting from the force and surprised the wall didn't crack from Izuku’s raw strength. Then the shorter male grabbed his jaw with a tight hold to kiss him deeply, his other hand planting itself on Katsuki's chest.

Moaning into Izuku's mouth, his hands immediately traveled down towards Izuku’s ass, squeezing the thick muscle to bring the freckled male in closer to him. It made Katsuki shiver, the feel of Izuku’s body pushing against his electrifying as the minutes passed from their heavy make out session.

This kiss was different, needy, more aggressive. It felt raw, passionate, much more dominant than the shy kissing the other night. And Katsuki ate it up, tilting his head so Izuku could stick his tongue down his throat. He welcomed it, letting Izuku overpower him with his lips, his tongue, that scarred hand leaving his jaw to grip his neck, squeezing it.

He grabbed the back of Izuku’s thighs to lift him up, switching their positions to flip Izuku against the wall. Izuku gasped but didn't break the kiss, moving his hands onto Katsuki's shoulders to grip his shirt and back muscles. He wrapped his legs tighter around Katsuki's lean waist, their bodies flushed together, Izuku's crotch rubbing against Katsuki's growing boner.

Katsuki was on cloud nine.

A sudden cough made them break apart.

They both stopped, staring at Uraraka who raised an eyebrow at them, trying to cover her bright smile behind her hand.

“Oh, don't mind me boys, just gotta use the bathroom! Mommy hormones and all, the twins make me pee like crazy.” She waved at them, shooting Izuku a look that made the freckled male blush before entering the bathroom and shutting the door.

Denki and Sero shrieking down the hall made Katsuki sighed, Izuku softly laughing against him.

“There's like someone at every corner in this fucking house.” The blonde grunted, irritated.

“Well, we are out with friends. But…maybe we can leave a little early to go back to my place?” Izuku softly stroked the side of his face, staring down at him with lidded emerald eyes.

How could Katsuki ever say no to such a pretty face.

Deciding his fate, Katsuki slung a giggling Izuku onto his shoulder. He grabbed his car keys and left without answering anyone's questions, ignoring their friends surprised stares. Luckily Izuku came with Todoroki, so they didn't have to worry about Izuku leaving his car or anything.

Izuku only lived thirteen minutes away from Kirishima, the drive there full of tension and soft music on the radio. He kept his hand on Izuku's jittering thigh, the other on the wheel while he floored it to the freckled male's place.

Eventually making it to Izuku's, he barely opened the door before getting snatched by his shirt and pushed against it, needy lips pressing against his.

Katsuki still had a state of mind to lock the door before wrapping his hands around Izuku’s waist. He let the smaller male steal his breath away with a soul-snatching kiss, melting into him like a candle.

“I wanted you so bad this whole week, need my Kacchan to touch me.” Izuku said in between kisses.

“Missed you too, Izuku, want you so fucking bad.” Lifting Izuku's head up by the chin, he stared into his viridian eyes, already feeling himself getting lost in his gaze.

“Fuck me, Kacchan, please?” He couldn't say no to that.

“Anything for you, Izuku.” Their lips met again, Katsuki eager and dragging his tongue skillfully everywhere he could in Izuku's mouth to dominate him.

A muffled cry left Izuku's lip when their tongues began to wrestle, his body shaking when Katsuki's growing erection rocked into him. He watched those pretty viridian eyes flutter shut as Izuku shuddered in his strong arms. Katsuki could barely breathe for the force of the want in him.

Lowering his hands on either side of Izuku's ass, he dragged his fingertips across the curve of it, then squeezed hard. It made Izuku jerk up into him, curling his fingers tightly into blonde spikes the more Katsuki kissed him deeply while fondling his ass, grinding into him, not letting up.

He leaned down to softly bite the bottom of Izuku's lip, sucking it into his mouth. Katsuki was so fucking horny, wanting to devour Izuku.

Silently they took each other's clothes off, not breaking their kiss. Both were eager to feel each other, skin to skin, body to body. But Katsuki remembered he had a mission and that was to please Izuku. So he immediately grabbed the back of his thighs, easily lifting him in the air to wrap them around his shoulders.

Izuku let out a squeak when his back hit the front door. He was clearly not expecting Katsuki to pick him up, quickly threading shaky scarred hands into bleach blonde hair.

Katsuki was feeling ravenous, obsessed with Izuku.

“Kacchan, what are you doing? We can just have normal sex!” Izuku nervously laughed in the air, flustered and not sure what to do with his hands.

“Normal ain't in my name, nerd. If you wanted that you should have called up one of your little boyfriends. Now shut the fuck up and let me eat you out, been wanting to do this all week.” He licked his lips in anticipation while staring up into emerald eyes.

“I've only ever wanted you, so getting with anyone else was out of the question. Now get to it, or are you all talk, Kacchan?” Izuku shyly teased him.

“I'll get to it alright, but are you sure you want this tonight?” He looked up at him, watching Izuku bite his lip before cutely nodding his head to give him the green light, always wanting to make sure Izuku was comfortable.

Looking down at Izuku's cunt, he decided to start off slow, not wanting to overstimulate Izuku too much yet.

With a heavy swipe of his tongue, he wasn't surprised that Izuku tasted sweet, the flavor melting on Katsuki's tongue. It was so good, but Katsuki had to pace himself because Izuku was a meal that needed to be cherished and slowly devoured. He couldn't help but moan out loud, slowly licking everywhere except Izuku's bud, not yet.

“Kacchan is hungry tonight, isn't he?" Izuku teased while tangling his hands in blonde spikes and carefully squeezing his thighs firmly around Katsuki's head.

"Fuck yeah I am." The blonde couldn't resist giving his clit a gentle kiss though before trailing his tongue between sweet folds. He alternated between gently licking and softly sucking anywhere he could, going at a steady, leisurely pace because he wanted to enjoy the taste.

Pulling his head back slightly, he spit into his pussy lips before immediately swiping his long, sinful tongue up and down through Izuku's folds hungrily, addicted to the flavor and warmth.

He could feel emerald eyes staring down at him, tightening his grip around Izuku's thighs while the freckled hero moaned loudly. He looked up at him, viridian meeting scarlet, locking eyes with each other. Honestly, Katsuki could do this all day, intent on not breaking eye contact.

“Yes, yes, keep going!" Izuku begged from above, the feeling of his legs vibrating on each side of Katsuki's making him more aroused. His response was to groan in delight at how wet Izuku was getting, his cunt turning the bottom half of Katsuki's face into a slip-and-slide while his nose inhaled the delicious scent.

Katsuki could feel his dick from below stirring back to life, listening to Izuku’s whines from above. It was such a turn on, pre cum leaking from his cock onto the floor as he vigorously ate Izuku out. This was what heaven felt like, Katsuki twitching at the feeling of more cum dripping from the head of his dick. Izuku was so wet that he was dripping from Katsuki's chin, onto his chest and to the floor. And Katsuki tried to slurp up as much as he could, addicted to Izuku.

Taking a handful of his muscular inner thighs, he gripped them tight to keep Izuku still while he practically smothered himself in his pussy. The blonde pushed his face in while moving his head softly from side to side, feeling delirious from the flavour and Izuku pulling at his scalp.

“Kacchan, fuck, im s-so close, don't stop!” Katsuki finally wrapped his lips around his clit, flicking at it rapidly with his hot tongue. It made Izuku throw his head back, letting out an obscenely loud, high-pitched moan that made Katsuki whimper as he devoured his meal.

He sucked harder, rolling his eyes back at the feel of Izuku digging his nails into his scalp. And when Izuku's legs fought to squeeze around Katsuki's head, he kept them obediently spread wide open with his flexed biceps, moaning as he ate Izuku with vigor. He groaned into his pussy, going back and forth across his tight hole, swallowing his slick like it was a drug.

He cocked his head back a bit to spit into Izuku's folds again, his tongue scooping some of it mixed with his slick before attacking his clit with his warm, long tongue. The action made Izuku go cross-eyed, more tears leaking from those emerald eyes and down his face as he was assaulted by Katsuki's mouth.

“Fuck, Kacchan, I'm cumming!” Izuku opened his mouth in a silent scream and closed his eyes while cumming, his breathing shakily uneven while his legs trembled violently around Katsuki’s head.

But Katsuki didn't stop, not until Izuku started weakly pulling at his hair and was whimpering from overstimulation, Katsuki working him through his orgasm while fucking him out on his tongue. He detached his mouth from Izuku, panting since he barely came up for air, too invested in Izuku’s pussy. Who could blame him, it was warm, tight, and the flavor was so delicious.

He kept Izuku's legs open to watch his cunt flutter post orgasm, red eyes locked onto the new slick dripping out from it onto the floor. His own pre cum from his dick made a small puddle, both men turning each other on.

“You l-look a mess.” Izuku said from above, looking frazzled and dazed out.

Katsuki grinned, licking his lips,

“I could say the same to you baby, so pretty.” Izuku's cheeks turned pink, suddenly shy and avoiding eye contact with the cocky blonde.

He carefully placed Izuku down, instantly grabbing his hips so he could pull him in for a kiss. Izuku hummed into his lips, pushing them back until they hit the couch. He pushed Katsuki back on it and got onto his knees, the blonde too dizzy to realize what was going on.

“Wanna suck you off, been wanting to do this all week.” Izuku stared up at him with heart eyes, Katsuki so in love with him.

“Someone's fucking eager, but you don't have to do that.”

“But I want to, so I'm going to. Is that alright with Kacchan?” The blonde nodded his head.

Spreading his knees, Izuku got comfortable on the floor before making eye contact. Meanwhile, Katsuki was trying not to act giddy, but he was very excited for those pretty pink lips to wrap around his aching dick.

The freckled male sat back on his knees to admire Katsuki's sculpted adonis body for a moment. He ran his hands all along his abs, running them down his defined v-line and muscular hips. Emerald eyes sparkled when they locked onto his dick, noticing the veins running along his thick length.

"You're so perfect Kacchan, veins with a curve, I love it so much." He kissed the tip of his cock, making Katsuki deeply inhale to calm himself down and not nut in two seconds.

Red eyes squeezed shut when Izuku stuck out his tongue and flattened it, taking Katsuki all the way to the back of his throat like a pro until his nose was flush with his ball sack and v-line.

"F-Fuck, you don’t have a gag reflex? You damned slut." He grabbed a handful of green curls, gently guiding Izuku up and down on his dick.

Izuku hummed, gripping his thighs with both hands and coming back up to breathe for a second, before sliding his mouth back down to the base. A little bit of drool was coating his chin and fresh tears leaked from the corner of his green eyes, but Izuku took it like a champ.

And Izuku clearly knew what he was doing, the little minx reducing him into a pile of goo the more he bobbed his head up and down with that wicked tongue and mouth working on him.

Izuku snuck a hand down to fondle Katsuki’s balls, massaging one with a skilled hand before giving the other one attention too. And Izuku looked right up at him with a devilish glint in his eyes, tightening his lips while picking up the pace, slurping around that big dick spasming in his throat.

"You're so beautiful when you suck dick, Izuku." The green-haired male moaned at the hot compliment, and Katsuki wasn't surprised when Izuku's other hand on his hip slid down to play with his pussy, spreading his freckled legs for the blonde to see exactly what he was doing. He felt so blessed at this moment, tightening his grip on Izuku's green curls.

He felt the need to take a deep shaky breath through his nose, that familiar warm, tightening sensation building up in his abdomen.

"Fuck, Izu, I'm gonna bust in your mouth if you d-dont stop." And of course, this just made Izuku go faster, the noises of his blowjob echoing loudly around the dark room.

A minute later, his orgasm hit him like a truck, red eyes rolling into the back of his head after feeling like he just got punched in the gut when he came in Izuku's mouth. And the freckled hero didn't let a single drop get past him while happily swallowing his kids down his throat.

His legs shook, feeling like jelly when Izuku as he finished sucking him off, taking his dick out his mouth with a 'pop' sound. Katsuki took a moment to catch his breath, lazily gazing down at Izuku who was staring up with those kind, big green eyes in adoration.

Finding the strength, he lifted Izuku from the ground into his arms, kissing him deeply. Izuku groaned, wrapping his hands around Katsuki's neck, scooting closer to him in his lap.

Without a second thought, he lifted Izuku with one arm to move them towards the bedroom. Yet they didn't break their kiss, Katsuki closing the door with his free hand before gently lowering Izuku onto the sheets. And Izuku didn't protest, opening his legs so Katsuki could slide in between them.

Their gazes tied together and slowly Izuku stuck out his tongue, Katsuki grinning before spitting into his open mouth. Izuku whimpered and swallowed it, leaning up to wrap a scarred hand around the back of Katsuki's neck. The blonde met him halfway for a kiss, obliging Izuku's needs and requests.

They made out for a few minutes, lost in the moment while they attacked each other's mouths for breathless kisses. It was so easy being like this with Izuku, rubbing his hands all over his beautiful scarred, freckled body.

Without thinking, Katsuki moved his head to attack one of his nipples with his hot tongue. It made Izuku gasp out loud, reaching a hand into blonde spikes to keep Katsuki's head still. Katsuki licked, swirled, sucked, loving the sounds of Izuku vocally expressing his enjoyment.

Surprising Izuku, he slid a hand down and softly stuck two fingers into his hole. Izuku cried and threw his head back, his back arching from the bed. Katsuki gently bit his nub, holding a thigh open with his free hand while fingering Izuku.

“D-Don't stop, feels so good.” And Katsuki didn't, sucking and leaving intentional marks all over his chest before catering his other nipple.

The sound of his fingers pounding into Izuku's g-spot sounded wet and nasty, but Katsuki loved it. He started going faster, using his thumb to circle Izuku's clit, feeling Izuku physically start to shake underneath him.

Fuck he craved this, being able to reduce Izuku into a whining mess. Of course Izuku was strong, he saved the world, but it was moments like this where he was submissive and vulnerable that Katsuki couldn't help but be possessive of him.

“Kacchan, I'm gonna c-cum again.” Izuku breathlessly, pulling on his head.

He brought his face back up so his lips could find Izuku's, shifting his free hand to hold Izuku's wrist above his curly head. The freckled male kept his trembling legs open as best as he could, his hips rocking back into Katsuki's fingers while deepening their kiss.

When the shorter male finally reached his peak, Katsuki felt stuck in a trance, watching Izuku's eyes roll back and mouth go slack. As always, Izuku let out the prettiest cry and tossed his head against the pillows, his body spasming as Katsuki witnessed a supernova of an orgasm wash over him.

Red eyes looked down when he felt wetness on his hand, Izuku squirting while he came. It was one of the hottest things he ever saw, liquid running down his hand and onto the sheets.

“S-Shit, sorry Kacchan, I c-couldn't help it.” Katsuki raised an eyebrow, licking his fingers clean while keeping eye contact.

“Why the fuck are you sorry for feeling good, Izuku? We'll sleep in the guest bedroom after, and just fuck up the sheets we're in now.” The freckled male opened his mouth then closed it, his cheeks blooming into a rosy red color.

Katsuki suddenly grabbed his jaw, Izuku's breath taken away when he kissed him. Fuck, Izuku was so pretty, all his and only his, he couldn't get enough of him.

“Can I put it in Izuku?” He whispered against his lips, hot, desperate, anxious.

“Of course, Kacchan never has to ask.” Deciding not to waste any more time, he held himself at the base as he guided his cock between Izuku’s folds.

Scarlet eyes watched Izuku bite his lip as the head slipped inside, Izuku's nails digging into his shoulders as he easily slid all the way in until his v-line was flush with his hole. He placed his hands under Izuku's knees to fold him like a pretzel before he gently rocked into him.

“You're so big, l-love your huge cock.” Katsuki smirked, leaning down to peck his lips while thrusting into him at a steady pace.

“And I love this pussy, my pretty little nerd.” He said fondly, nothing but love in their gazes as they stared at each other.

"Ka-Kacchan you're so good, my good boy." Izuku praised, pushing back harder for emphasis to let Katsuki know he could be rougher. His green eyes went crossed when Katsuki immediately hit his g-spot dead on while steadying himself with a hand beside his head, starting to thrust into him roughly.

"Yes, you feel good, so good Kacchan!" Izuku sounded breathless as Katuski's thrust became more aggressive.

"F-Fuck, I've wanted you for so long, gonna make you cum again and again." Katsuki grabbed his hips in a bruising grip, angling them even higher and striking that spot that made Izuku see stars, hands scarred shakily digging into his back muscles.

"Yes, go harder, de-deeper!" Izuku shakily said as he lifted his hips, a loud choked moan escaping from him when Katsuki fucked him impossibly deep on the next stroke.

"Yes, Kacchan! R-Right there, oh my God—" Katsuki smirked, grabbing his curly green hair to lift his head up while pumping into him much faster than before, harder.

"Fuck yeah, take it, nerd." Katsuki's hand left his curls to roughly grab his neck, squeezing it with just the right amount of pressure that made Izuku scream. He watched emerald eyes roll back with pleasure as Katsuki continuously hit his sweet spot and choked him.

"Kacchan—" His legs started trembling under the blonde's harsh thrusts.

He let out a squeal when Katsuki's other hand slid down to circle his clit with his thumb. Tears fell down Izuku's face, white dots behind his eyelids at those skilled fingers and dick working on him at the same time.

“Look how fucking drenched you are, Izuku.” Katsuki relished hearing the sound of slick squelching, wetness shining on his stomach and inner thighs as their sex juices dripped down to form a large puddle on the bed beneath them.

Katsuki was shocked when blackwhip suddenly came out from Izuku unconsciously, wrapping around his body. He looked down at Izuku whose eyes were rolled back and mouth open, unaware that his quirk was slithering around Katsuki. His power pressed Katsuki right onto Izuku’s body into a mating press, skin to skin.

As Katsuki thrusted, he realized blackwhip was pushing him into Izuku, helping him pound into the freckled male. He would say something but he was so lost in lust, his arms bracketing each side of Izuku's head and placing his head into the crook of Izuku's neck.

He guessed not all the embers of OFA had vanished yet.

Izuku wrapped his arms tighter around his back, his nails leaving marks while freckled legs wrapped around Katsuki's waist. He felt Izuku shiver harshly, tucking his head in Katsuki's shoulder and holding on for dear life while the blonde dicked him down.

“P-Please, Kacchan, want us to cum together!” Izuku weakly whined, blackwhip binding them as one as their orgasms approached.

“I know baby, I know, you feel so, so fucking good.” Katsuki whispered in his ear.

Izuku dug his nails deeper into Katsuki’s back as his eyes rolled back into his head, unable to do anything but cry as his body locked up. Katsuki felt more warm wetness travel between their stomachs and onto the sheets, realizing Izuku was squirting hard as Katsuki continued to fuck him.

Katsuki followed him a moment later, fucking in deep as he came inside of him, the warmth of Izuku's walls welcoming him in and squeezing. He sloppily rocked into him for a few moments longer before collapsing on him, blackwhip slowly disappearing.

He still had a state of mind to move his body and place them on their sides so he didn't crush Izuku. Yes, Izuku could handle his weight, but still, Katsuki was heavy.

The blonde still didn't pull out yet and shivered at the tightness of Izuku's cunt, Izuku caressing the side of Katsuki's face before swinging a leg around his hip to bring him in close. Katsuki wrapped a hand around his thigh, softly thrusting back into Izuku as his dick began to slowly harden again.

They laid there like that for a long moment to catch their breaths.

Eventually Izuku sat up slightly, cupping Katsuki’s sweaty face in his hands before kissing him. Katsuki moaned into the kiss, sucking on Izuku’s tongue when it found its way into his mouth.

“Did you know blackwhip came out during sex just now? It wouldn't let me go, but it was fucking hot.” Izuku blinked lazily at him, still recovering.

“N-No, sorry about that.”

“Don't be sorry baby, I loved it, guess OFA is still in there.” Katsuki grinned against his lips, slowly rocking up into him.

“F-Fuck, Kacchan.” Izuku slurred against his lips, his walls instantly spasming around Katsuki's hardening cock, wrapping his scarred hands around his neck.

Yeah, Katsuki was definitely in deep.

After that night, the next two weeks consisted of that.

Izuku and Katsuki continued running back and forth to each other's house every night, practically living together for half a month. They had sex every chance they could get, at the agency, in their offices, Izuku's mother's house, in the alleyway on the streets while patrolling, everywhere.

Neither of them could keep their hands off each other, like a flame that couldn't be exhausted. It was like years of pent up frustration finally breaking down, both of them so caught up in the moment of wanting to be with each other intimately.

But the day Katsuki was slightly afraid of finally came.

The need to use piss woke Katsuki up, regretfully having to let Izuku go so he could use the bathroom.

Leaving the warmth of the sheets, he quietly slipped away, using the moonlight to guide him to the restroom. Softly closing the door, he squinted, letting his vision adjust to the dark, then grabbing his length to shoot into the open toilet.

The last thing he remembered was them taking a shower and changing the bed sheets before falling asleep a little while ago.

Izuku had tapped out halfway, having to help the freckled hero clean himself and get him in bed. He didn't mind kissing and fingering Izuku to sleep since Izuku was too sensitive for Katsuki's cock.

Katsuki's body for sure was sore, going round after round with Izuku until they lost count after their tenth time cumming tonight. He realized within these last two weeks that they had way too much sexual compatibility and stamina to stop after the sex change quirk went away. This was the best sex he has ever had, but it was because it was with Izuku, so he shouldn't be too surprised.

Sadly enough, eventually the quirk vanished, he was afraid this would all end. Not only did he crave Izuku sexually, but he loved how domestic they've become. Amazing sex, great battle chemistry, cooking together, cleaning and doing daily chores, it almost felt like they were dating.

And Katsuki didn't want it to end.

The problem was that he didn't know how to bring up this issue to Izuku once the quirk was done. Admittedly, Katsuki was absolutely terrified to bring up the topic of dating, and there weren't many things he was afraid of which spoke volumes.

The only reason they were in the predicament they were in now was because of a stupid quirk side effect. And Izuku felt safe enough to open himself up to pleasure with Katsuki because they were best friends. So why ruin a good friendship?

Katsuki has seen in real time what confessing to a friend can do.

Denki admitted he had feelings for Sero years ago, but Sero politely rejected him. And now Denki was with Shinsou and Sero was with Todoroki, but it was rough for their friend group for a little while. Until things got squashed and they became good friends again.

But he couldn't stand not being around Izuku, the thought giving him the ick.

Flushing the toilet, he went over to the sink to wash his hands. Taking a deep breath, he turned off the water, reaching for a hand towel when his hand hit something plastic on the counter. Narrowing his eyes, he picked it up, using the moonlight from the window to see what it was and stared hard.

It was a pregnancy test.

Squinting at directions, he read the instructions and sniffed it. It smelled normal, but when he flipped it around he noticed two lines. Looking back at the writing, he blinked at the lines again and gasped.

It was positive.

Not paying attention, he tripped over the small trashcan near the toilet and hit his head hard against the wall, groaning in pain as he slid to the floor. One hand held the pregnancy test while the other held his aching head, cursing at himself.

Hurried footsteps approached, opening the door and turning the light on.

“Kacchan, are you okay?” Both men silently stared at each other for a few seconds, Izuku in his robe worriedly looking down at him.

But then the freckled male took notice of the pregnancy test in his hand, panic flashing in his emerald eyes. Katsuki also looked back at the pregnancy test and put two and two together, slowly glancing back up at Izuku.

“Um,” Katsuki cleared his throat. “I'm assuming this is yours?”

Might as well ask since the cat was out the bag.

Izuku helped him up to his feet before leaving back to the bedroom, not saying a word. Katsuki turned off the bathroom light, following Izuku who turned on the lamp next to the bed.

He watched Izuku quietly mutter to himself and turn his back to Katsuki, twiddling his fingers. Still, he didn't speak up right away, which alarmed Katsuki for some reason. Clearly there was something Izuku didn't want to admit.

“Is it mine?” Katsuki had to question, needing answers.

Another minute of silence passed, Katsuki not realizing how bad his anxiety was starting to flare up until now. Izuku hypothetically being pregnant with his child shouldn't be making him this nervous, yet here he was secretly hoping Izuku said yes.

“Izuku, if it's not mine it's fine. You don't have to answer if it's personal, shit ain't none of my business.”

Looking over his shoulder, Katsuki caught a glimpse of Izuku's eyes and how they started to water.

“I-It's Kacchan's, you're the only person I've had sex with in the last two weeks. But it doesn't matter, n-none of it does now because the side effects are gone.” Fully turning around, Izuku looked away and opened his robe.

There it was, Izuku back to normal with a dick and balls where they should be. Katsuki felt a lustful hunger begin to rise at the sight, but shook off the feeling quickly due to the seriousness of the situation. Nonetheless, Izuku Jr. was back, but that didn't explain why the shorter male looked like he was ready to burst into tears.

“Okay, so why are you about to cry? Talk to me.” Softly, he grabbed one of Izuku’s hands to lead him to the bed.

Sitting down next to him, he set the pregnancy test on the nightstand and gave Izuku his full attention. Gently, he put his hand on top of Izuku's, surprised when Izuku squeezed it back.

“I feel very emotional about a lot of things right now, and maybe it's the hormones, who knows. But a part of me was maybe hoping that, if there was a way to keep the quirk for a little longer, I actually could give you a child. And I can't help but feel that in some way, shape, or form, having sex with me like that made you realize you're not as gay as you think. I mean, the way you fucked me, it almost felt like you wanted to put a baby in me. And my stupid brain got all mushy and excited, so I was okay with not using condoms. Then boom, it actually happened.” Katsuki was in disbelief, staring at Izuku like he had grown two heads.

Izuku continued,

“I just thought you would want to be with me if I actually was a woman. Such a silly thought, I know."

"So...how did you know you were pregnant?" A heavy sigh left Izuku.

"The only reason I found out was because I was a little nauseous. For the last three days, I've been feeling terrible and apparently experiencing morning sickness. So I called Uraraka to tell her, and she told me she felt the same when she and Iida had their first baby. She came over, brought the test, and now we're here. And I swear I was going to tell you, I just didn't know how.”

Taking it all in, Katsuki took a minute of silence to process the confession. The sudden flood of his own emotions overwhelmed him, but he powered through for Izuku.

“So,” He cleared his throat,

“One thing I want to clear up is that I'm definitely still gay as fuck. Pussy and big boobs ain't for me, trust me. I got enough tiddies for me and whatever woman if I was straight.” That made Izuku snort out a giggle, Katsuki snickering along with him.

Izuku glanced at his chest fondly,

“You definitely have nice pecs, that's for sure.” They laughed, the air around them a little more comfortable.

“Anyway, look Izuku, I don't give a damn what's in your pants. A cunt, a dick, you could have tentacles down there for all I care and I would still find a way to please you. You're more than just an experimental fuck to me, I want you to understand that.” Izuku gave him a hesitant look, a single tear falling down his face.

“You say that, but you've never been interested in me until now.” Katsuki looked at him like he was insane.

“Izuku, I literally almost died for you because of Shigaraki twice. Every time you get hurt, I'm the first and last person out of the hospital, and even spend the night until you're discharged. Shit, let's not forget I paid for a million dollar suit for you to be a hero again for fucks sake. I cook for you, I make time for you, you're the first person I tell all my news to…shit, I don't do that stuff for anyone except you. So if all that doesn't speak volumes, I don't know what does.” He wiped more tears from Izuku’s face, gently kissing his forehead.

“B-But the baby is gone and so is the quirk. I'm sure you would help any of your other close friends if this happened to them too.” Katsuki physically gagged at the thought, which had Izuku laughing at him at how dramatic the reaction was.

“What? Kacchan wouldn't help his other friends?”

“Fuck no! Respectfully, if Denki, Sero, or Kirishima suddenly had a vagina I would tell them to figure that shit out themselves. Hell, even if Mina had a dick I still wouldn't do it. I love my shitheads, but I wouldn't get in bed with them, disrespectfully. You though? I don't know what it's gonna take for you to understand I would do anything for you Izuku. You're an exception, you've always been, and I still want you even now.” Izuku sniffed, wiping his face with his robe sleeve.

“You s-still want me? You don't have to lie to me, I promise things won't be weird if you want to go back to normal as friends. I don't think I could handle another situationship like I did with Shindo.” Katsuki shook his head at the audacity.

“Listen, I ain't Shindo Yo. Fuck that guy for using you, I still want to kill him to this day. Regardless, I've literally tasted you off of my fingers and have been balls deep inside of you. Why would I want to be just friends? What, you think I don’t want you anymore because you have a dick again? Be so fucking forreal, Izuku.”

“Okay, but what if this secretly made you want to find a woman and have kids? I would hate to take that experience away from you, Kacchan.”

“Baby, with all the weird quirks in the world, if I wanted kids, we can make that happen. Shit, if you had a pussy for two weeks and got turned half fish for four days that one time, anything is possible. I'm sure there's someone in this world that could splice our D.N.A and help us make a kid. Or we could adopt some brats, doesn't matter. What does matter, is that this experience changes nothing about my feelings for you.” Izuku looked up at him through his teary eyes.

“Your feelings?” He cradled Izuku’s head in his hands, pushing their foreheads together.

“Yeah, I've been in love with you since we were kids. I don't think there's ever been a time where I didn't love you. Maybe a stage of heavy denial, but it's always been you, nerd.” He smiled.

“Even without being able to biologically give you children, are you sure you want a relationship with me? You know I'm a lot, and I'm someone who needs reassurance. I don't want anything short term with you.”

Squeaking, Izuku wasn't expecting Katsuki to place him on his lap. Izuku stared at him, cheeks turning the color of an apple, yet Katsuki locked eyes with him, a determined look in his stare.

“I'm the one that needs constant communication, nerd. I want you, I want this, for the long run. You mean everything to me. Besides, I'm more worried about you wanting kids. You're the one who's bisexual and still likes women. Plus I see the way the kids make you light up when we're on patrol. It would be me taking that experience away from you.” Izuku raised an eyebrow.

“No, no I don't care about that. To some degree I do, but like you said, there's so many quirks in the world. Someone out there is bound to be able to help us make a baby. Or we could adopt, there's a lot of kids in the system that we can help. So when the time comes, we'll figure it out, together.”

“Yeah?”

“Yes. So I'll ask you one more time. Are you absolutely sure you want this, Kacchan?” The blonde scoffed.

“When have I ever lied to you, I don't lie about anything. The only thing was your suit for eight years, and trust me, I wanted to tell you about that several times. But yeah, I'm sure. It's you or nobody at this point.” The freckled male sniffed, smiling through his new tears.

“Same, it's Kacchan or nothing for me as well. Sorry, confessing our feelings is so dramatic. I feel like we could have been more normal about it.” Izuku softly laughed.

“Is anything about us ever normal?” Katsuki grinned.

“No, I guess not. I love you, Kacchan.”

“I love you too.”

They leaned in it to meet for a kiss, slowly molding their lips together and taking their time with each other. Because this time Katsuki could kiss him passionately the way he's always wanted to, like lovers.

He laid Izuku down, and for the rest of the night pleased him until the sun rose and Izuku passed out again. Katsuki needed Izuku to know he meant every word he said, because his anatomy truly didn't matter to Katsuki.

He loved Izuku, no matter what, and his feelings would never change.